"Alex, I just wonder… why didn't you loot them after?" Cairo inquired. "I'm sure those murderers have decent items in their possession."
"Master, there are Unique Skills that allow their users to momentarily see what happened before someone died," Alex explained. "There are also skills that can track items or equipment.
"I didn't mention it earlier, but the Blade Fangs are just one of the many Adventurer Killer Parties. They are part of this organization called Silent Coffin, a bloodthirsty bunch who go after those who kill their members.
"As one of the parties under their organization, they probably reported back to their organization regularly to sell loot or pay some kind of protection money. If they don't appear soon enough, their comrades might start to investigate."
"What about the two Adventurers we saved earlier, then?" Cairo asked. "What if Silent Coffin discovers them and interrogates them? Won't you be in danger then?"